url-params-helper/lib/url-params.js

A helper for URL parameters/query strings.

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	if(typeof exports === 'object' && typeof module === 'object')
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	else if(typeof define === 'function' && define.amd)
		define("url-params", [], factory);
	else if(typeof exports === 'object')
		exports["url-params"] = factory();
	else
		root["url-params"] = factory();
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/* 0 */
/***/ function(module, exports) {

	'use strict';
	
	Object.defineProperty(exports, "__esModule", {
	  value: true
	});
	exports.getParams = getParams;
	exports.getParam = getParam;
	exports.buildQueryString = buildQueryString;
	exports.buildQueryStringURL = buildQueryStringURL;
	exports.replaceParam = replaceParam;
	exports.removeParam = removeParam;
	function getParams(pageURL) {
	  var url = pageURL || window.location.href;
	  var queryString = url.split('?')[1];
	  var rawParams = typeof queryString === 'string' && queryString.length > 0 ? queryString.split('&') : '';
	  var params = {};
	
	  for (var i = 0; i < rawParams.length; i++) {
	    var rawParam = rawParams[i];
	    var param = rawParam.split('=');
	    var paramName = param[0];
	    var paramValue = param[1];
	
	    if (paramName.indexOf('[]') === -1) {
	      // Handle literal params
	      if (paramValue && paramValue !== '') {
	        params[paramName] = decodeURIComponent(paramValue);
	      }
	    } else {
	      // Handle array params
	      paramName = paramName.replace(/[\[|\]]/g, '');
	
	      if (params[paramName] === undefined) {
	        params[paramName] = [];
	      }
	
	      params[paramName].push(decodeURIComponent(paramValue));
	    }
	  }
	
	  return Object.keys(params).length > 0 ? params : null;
	}
	
	function getParam(param, pageURL) {
	  var params = getParams(pageURL);
	
	  return params ? params[param] : null;
	}
	
	function buildQueryString(params) {
	  var queryString = [];
	
	  for (var param in params) {
	    if (params.hasOwnProperty(param)) {
	      (function () {
	        var paramName = encodeURIComponent(param);
	        var paramValue = params[param];
	
	        if (paramValue !== undefined) {
	          if (paramValue instanceof Array) {
	            /* eslint-disable no-loop-func */
	            paramValue.map(function (v) {
	              queryString.push(paramName + '[]=' + (v === undefined || v === null ? '' : encodeURIComponent(v)));
	            });
	          } else {
	            queryString.push(paramName + '=' + (paramValue === null ? '' : encodeURIComponent(paramValue)));
	          }
	        }
	      })();
	    }
	  }
	
	  return queryString.join('&');
	}
	
	function buildQueryStringURL(params, pageURL) {
	  var url = (pageURL || window.location.href).split('?')[0];
	
	  var queryString = buildQueryString(params);
	
	  return url + (queryString.length > 0 ? '?' + queryString : '');
	}
	
	function replaceParam(param, value, pageURL) {
	  var params = getParams(pageURL) || {};
	
	  params[param] = value;
	
	  return buildQueryStringURL(params, pageURL);
	}
	
	function removeParam(param, pageURL) {
	  var params = getParams(pageURL) || {};
	
	  delete params[param];
	
	  return buildQueryStringURL(params, pageURL);
	}

/***/ }
/******/ ])
});
;
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